ClassID:

38651

B21D28/24 - CPC Classification

Classification description:

Shaping by press-cutting; Perforating Perforating, i.e. punching holes

Sub-classes:
Recent Application in this class:
#1
20250066894
2025-02-27

Aluminum alloy pre-strengthening and hot forming production line

#2
20240149319
2024-05-09

METHOD FOR PRODUCING AT LEAST ONE COMPONENT ELEMENT FOR A FURNITURE FITTING

#3
20220111480
2022-04-14

Tool management device and tool management method for determining an accumulated wear amount of a tool

#4
20210317889
2021-10-14

Polygon prism torsion bar

#5
20200376537
2020-12-03

Lead acid battery case punch and sensor

#6
20200269304
2020-08-27

Metal sheet with contour cut for vibration reduction

#7
20200038937
2020-02-06

Adjustable Intelligent Digital-display Plate Punching Device with Inclined Holes Positioning

#8
20190353041
2019-11-21

Methods and articles relating to ionic liquid bath plating of aluminum-containing layers utilizing shaped consumable aluminum anodes

#9
20190063673
2019-02-28

Mounting unit, assembly frame using the same, and method of manufacturing the same

#10
20190060974
2019-02-28

Punching apparatus

#11
20190060973
2019-02-28

Shearing method

#12
20190054647
2019-02-21

Method for making a blind hole

#13
20180375406
2018-12-27

Position sensor assembly

#14
20180326470
2018-11-15

METHOD FOR PRODUCING A SLEEVE-LIKE PASSAGE

#15
20180297100
2018-10-18

Machined article and pressing method

#16
20180229576
2018-08-16

Vehicle stabilizer, processing device for eye portion of stabilizer, and processing method for eye portion

#17
20180078989
2018-03-22

Reorientable rotatable processing tool

#18
20170362809
2017-12-21

Weir grate

#19
20170342717
2017-11-30

Gutter cover, gutter assembly including same, and method for installation thereof

#20
20170333963
2017-11-23

Method of manufacturing piston of pump for brake system and pump for brake system including the piston

#21
20170326620
2017-11-16

METHOD OF MANUFACTURING CRANKSHAFT HAVING WEIGHT-REDUCING FORGED HOLES

#22
20170098728
2017-04-06

Photovoltaic cell having a coupled expanded metal article

#23
20170080471
2017-03-23

Tool for a punching machine for reshaping portions of a plate-shaped workpiece and method thereto

#24
20170056962
2017-03-02

Process of manufacturing wrenches

#25
20170051492
2017-02-23

Weir grate

#26
20170040850
2017-02-09

LAMINATED IRON CORE, METHOD FOR MANUFACTURING LAMINATED IRON CORE, AND PUNCH FOR CAULKING FORMATION USED IN THE METHOD

#27
20170036261
2017-02-09

Die abnormality prediction system, press machine provided with the same, and die abnormality prediction method

#28
20160354824
2016-12-08

Method and device for achieving long collar lengths

#29
20160303754
2016-10-20

Die with profiled base wall

#30
20160167247
2016-06-16

System and method for forming holes onto a sheet-metal assembly

#31
20160101457
2016-04-14

Punching apparatus

#32
20160008864
2016-01-14

Press apparatus

#33
20150224619
2015-08-13

Tool measuring apparatus

#34
20140318344
2014-10-30

Die with profiled base wall and its associated punch

#35
20140119038
2014-05-01

Lighted trim assembly and perforated member therefor

#36
20140096661
2014-04-10

Reorientable rotatable processing tool

#37
20140033785
2014-02-06

Method and tool for hot forming a metal workpiece

#38
20140007643
2014-01-09

Pressing and stripping apparatus for punch die and push rod thereof

#39
20130319065
2013-12-05

Hot forging press machine

#40
20130227999
2013-09-05

WORKPIECE PUNCH-MOLDING METHOD AND WORKPIECE PUNCH-MOLDING DEVICE

#41
20120312064
2012-12-13

Punching sheet metal

#42
20120260784
2012-10-18

PRESS WORKING METHOD AND PRESS WORKING APPARATUS

#43
20120204618
2012-08-16

DEVICE, METHOD AND TOOL FOR PRODUCING A RIMMED PASSAGE IN A COMPONENT

#44
20120111161
2012-05-10

Piercing method with heating

#45
20120085140
2012-04-12

Burr removing method and device

#46
20120018362
2012-01-26

WEIR GRATE

#47
20110297244
2011-12-08

Universal hole cutter

#48
20110283654
2011-11-24

Mounting rail

#49
20110034259
2011-02-10

METHOD OF MAKING A WASHER

#50
20100218660
2010-09-02

Die assembly

#51
20100126640
2010-05-27

Method and tool for hot forming a metal workpiece

#52
20100018277
2010-01-28

Apparatus for hot-forming, press-quenching, and cutting semifinished hardenable-steel workpiece

#53
20090223273
2009-09-10

Plate workpiece processing tools and machines

#54
20090211326
2009-08-27

Reorientable rotatable processing tool

#55
20090180862
2009-07-16

Method of manufacturing turbine frame for VGS turbocharger, turbine frame manufactured by the method, exhaust gas guide assembly for VGS turbocharger using the turbine frame, and VGS turbocharger in which the exhaust gas guide assembly is incorporated

#56
20090038357
2009-02-12

Piercing device of hydroforming mold

#57
20080254249
2008-10-16

Work subject material, surface protection sheet and method of working

#58
20080121388
2008-05-29

Method for the production of a heat exchanger

#59
20070157692
2007-07-12

Method and device for producing workpieces by means of internal high pressure forming

#60
20070069003
2007-03-29

Boring device and boring method

#61
20060196329
2006-09-07

Method and die for punching or forming

#62
20060117824
2006-06-08

Method and system for processing plate material, and various devices concerning the system

#63
20050252269
2005-11-17

Toggle press

#64
20050210949
2005-09-29

Punch tool for angled orifice

#65
16534628
2020-09-22

Notcher

#66
13623012
2021-12-28

Systems and methods for trimming powered cards and devices